Science Questions
Explore questions in the Science category that you can ask Spark.E!
Compared with a star in the middle of the Hertzsprung-Russell diagram, a star in the lower left of the diagram is
What fraction of the stars surrounding the Sun are main-sequence stars?
If the surface temperatures of white dwarf stars are 4 times that of the Sun, and energy output per unit area of a star depends on the fourth power of the temperature by the Stefan-Boltzmann relation, why are white dwarfs intrinsically so faint?
As you move upward and to the left on the H-R diagram the stars become
Measurements indicate that a certain star has a very high intrinsic brightness (100,000 times as bright as the Sun) and yet is relatively cool (3500 K). How can this be?
Why do scientist think that liquid water might have once existed on Mars?
What is the main difference between a meteor, meteorite and meteoroid?
Located in Earth's atmosphere, a.k.a a shooting star
What lies between the inner and outer planets?
If you looked for the moon at 10pm last night and couldn't find it in the clear sky, but you saw it the next morning, what's one thing about its phase that must be true?
What kind of star system has two stars orbiting each other?
Which planet has iron oxide and polar ice caps?
what is the dusty atmosphere around the nucleus of a comet?
What surrounds the entire solar system and has been compared to a snow globe of comets?
What three stages do all stars experience?Hint: Ursa Major and Minor are examples of this
How many moons does Neptune have?
True of false: Pluto is about the size of half the U.S.
How many moons does Jupiter have?
In a comet, what is at its center?Hint: it's the same as what's at the center of a cell
Which theory states that between 13-14 billion years ago, the universe began expanding out of an enormous explosion?